class_docstr: Jaccard Index for Semantic Segmentation
  Calculates Jaccard Index for semantic segmentation (binary images only).
code: def __init__(self):
      self._reset()
  
file_path: icevision/icevision/metrics/jaccard_index/binary_jaccard_index.py
imports: from icevision.imports import *
  from icevision.utils import *
  from icevision.data import *
  from icevision.metrics.metric import *
label_desc: Use image node_id 1 to create a new BinaryJaccardIndex object from inherited base classes: Metric with example: obj = BinaryJaccardIndex()